Let’s look at the top three reasons why RLS press fittings are so popular.

When RLS (Rapid Locking System) introduced the first press-to-connect fittings for HVACR back in 2015, some contractors were understandably skeptical of the new technology.

It took some time for RLS fittings to gain acceptance from the industry. But now, more than seven years later, the fittings are in widespread use around the world. Why? Here are three key reasons:

1. Proven reliability

The first thing most industry veterans said when RLS fittings were introduced was:“Sure they hold pressure now. But we’ll see if they leak in a few years.” Well, a few years passed…and then a few more…and the reports of leaking fittings that were predicted by the skeptics never materialized. With each passing year, the industry in general became more and more comfortable with the use of press fittings for HVACR. Today, RLS fittings are considered a safe and proven alternative to brazing.

2. Labor shortages

Let’s face it, it’s tough to find and keep good workers right now. So, many companies are short staffed, but still have plenty of work. That means they need to get more work done with less people.

This is exactly what RLS press fittings can do. Since the fittings connect in about 10 seconds, each joint can be completed much faster than with brazing. Especially on larger commercial projects, the time savings can really add up. Plus, the RLS pressing process can be learned quickly and easily, with minimal training.

3. Increase in tool/jaw options

To use RLS fittings back in 2015, contractors had to first invest in a new press tool and jaws. But with the addition of RLS-compatible jaws from RIDGID and Milwaukee for use with a wide range of tools up to 32 kN, it is now easier than ever to get into pressing for HVAC. If you already own a press tool of any brand or size including RIDGID, Milwaukee, Rothenberger, Klauke, Viega and others, there’s a good chance you will only need to buy the jaws (and only in the sizes you use) to start enjoying the time-saving benefits of RLS fittings.

To learn more about RLS press fittings, visit or contact Ian Robertson, Director of Sales for Australia and New Zealand, at

 Best features

From faster installation, to increased safety, to avoiding dragging tanks and other brazing equipment to the jobsite, RLS fittings offer many advantages:

• Connections in 10 seconds

• UL Listed to 700 psi

• No gas or brazing materials

• No flame, no fire hazards

• No nitrogen purging

• Works in tight spaces

• Millions of fittings installed

• 15-year limited warranty

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